Removal of Cesium from Aqueous Solutions by

0 downloads 0 Views 265KB Size Report
Removal of cesium from aqueous solutions by copper hexacyanoferrate membrane ... other materials due to their selectivity and high capacity [2]. .... 64.47 Cu K.
Available online at www.sciencedirect.com

Procedia Engineering 44 (2012) 1728 – 1730

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

,,,

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© 2012 Published by Elsevier Ltd. Open access under CC BY-NC-ND license. doi:10.1016/j.proeng.2012.08.926

1729

R.Z. Chen et al. / Procedia Engineering 44 (2012) 1728 – 1730

 5HYHUVLEOHSURFHVVUHVXOWLQJLQHDV\UHJHQHUDWLRQ  6LPSOHDQGUDSLGVRUEHQWVHSDUDWLRQ >@

7KH&X+&)SUHFLSLWDWHVZHUHV\QWKHVL]HGIROORZLQJWKHFKHPLFDOHTXDWLRQ   &X 12 ‡+2.>)H &1 @ĺ&X>)H &1 @.12  7KHQ WKH SUHFLSLWDWLRQ &X+&) FRUH ZDV PL[HG ZLWK 1D>)H &1 @‡+2 WR LPSURYH LWV K\GURSKLOLFLW\ IRU ZDWHU VROXEOH )LQDOO\  &X+&) LQN ZDV REWDLQHG IRU PHPEUDQH FRDWLQJ XVLQJVSLQFRDWHULQVWUXPHQW 7KH&VDGVRUSWLRQZDVSHUIRUPHGLQDWKUHHHOHFWURGHFHOOLQZKLFKDQ+J+J&O.&O VDWXUDWHG VROXWLRQ  DV UHIHUHQFH HOHFWURGH D SODWLQXP HOHFWURGH DV FRXQWHU HOHFWURGH  DQG WKH &X+&) PHPEUDQH FRDWHG DGVRUEHQW HOHFWURGH ZHUH XVHG DV WKH ZRUNLQJ HOHFWURGHV 7KH UHGR[ UHDFWLRQ IRU LRQ H[FKDQJH SURFHVV XVLQJ DSSOLHG SRWHQWLDOV RI 9a9 YV +J+J&O  LV SURSRVHGDVIROORZV  ,,,

í



,,

&X>)H &1 @ DGVRUEHQWHOHFWURGH H &V ļ&V&X>)H &1 @ 

7KH UHDFWLRQ ZDV SHUIRUPHG IRU PLQ WKH &V ORDGHG HOHFWURGH ZHUH WUDQVIHU LQWR D  P/ 1D12VROXWLRQIRUFHVLXPHOXWLRQIRUDQRWKHUPLQUHSHDWHGF\FOHVDWDFRQVWDQWVSHHGRI  USP DQG URRP WHPSHUDWXUH ƒ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

E

     

&V

1730

R.Z. Chen et al. / Procedia Engineering 44 (2012) 1728 – 1730

   (OHPH QW

:W

$W

(OHPH QW

&.



 &X.







1.



 )H.







6L.





&V/





SSP &V DGVRUSWLRQ D  6(0 LPDJH E  ('; VSHFWUXP DQG

$X0













:W $W



)LJXUH  6(0('; UHVXOW RI WKH &X+&) PHPEUDQH DIWHU 

F &KHPLFDOFRPSRVLWLRQVRQWKHVXUIDFHRI&VORDG&X+&)

 ,,

,,,

7KH VWXGLHV VKRZHG WKDW WKH V\QWKHVL]HG &X +&)  PHPEUDQH ZKLFK KDV D FU\VWDOOLQH VWUXFWXUHQDQRSDUWLFOHVFRDWHGVXUIDFHPRUSKRORJ\H[KLELWHGDKLJKVHOHFWLYLW\IRUFHVLXP:H ,, ,,, SURSRVHG DQ HOHFWURFKHPLFDO DGVRUSWLRQ V\VWHP XVLQJ &X +&)  PHPEUDQH FRDWHG HOHFWURGHV IRUFHVLXPUHPRYDO7KLVV\VWHPFDQEHXVHGIRUGHVDOLQDWLRQ ZLWKRXWWKHFRVWO\LRQH[FKDQJH PHPEUDQH DQG H[WUD FKHPLFDO UHDJHQWV &V ORDGLQJ DQG XQORDGLQJ DUH HDVLO\ FRQWUROOHG E\ PRGXODWLQJWKHHOHFWURGHSRWHQWLDO6LJQLILFDQWDGYDQWDJHVDOVRLQFOXGHWKHXVHRIDUHJHQHUDEOH VRUEHQW DQG WKH PLQLPL]DWLRQ RI VHFRQGDU\ ZDVWH 7KH VXVWDLQDEOH XSWDNH LQ ORZ S+V DQG FRH[LVWLQJDONDOLQHFDWLRQVPDNHVLWDVDSURPLVLQJVRUEHQWLQDFWXDODFLGLFQXFOHDUZDVWHZDWHU )XUWKHUPRUHLWVVLPSOHUHJHQHUDWLRQDQGPHPEUDQHVWUXFWXUHDOORZVLWWREHXVHGVXFFHVVIXOO\ LQWKHFROXPQIRUVHTXHQWLDODGVRUSWLRQSURFHVVHV 5HIHUHQFHV >@@+0LPXUD-/HKWR5+DUMXOD-1XFO6FL7HFKQRO  ± >@6+@/--DQVVHQ/.RHQH-&KHP(QJ  ± >@$*RWRK7.DZDPRWR+7DQDNDHWDO1DQRWHFKQRORJ\   .H\ZRUGV 5DGLRDFWLYH FHVLXP &RSSHU ,,  KH[DF\DQRIHUUDWH ,,,  ILOP (OHFWURFKHPLFDO DGVRUSWLRQ6HOHFWLYHUHPRYDO